Machine for use in street-paving work.



G. E. BATHRIOK. MACHINE FOR USE IN STREET PAVING WORK.

APPLICATION TILED MAY 14, 1909.

Patented Apr. 2 5, 1911. i

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4 wlamw aw AWN, Q 0AM C. E. BATHRIOK. MACHINE FOR USE IN STREET PAVING WORK.

3' APPLICATION FILED MAY 14, 1909. 25,

3 SHEETS-SHEET 2.

G. E. BATHRIGK.

MACHINE FOR USE IN STREET PAVING WORK.

APPLICATION FILED MAY 14, 1909.

Patented Apr. 25, 1911 S BHBETS--SHEET S.

QQQ SISS UNME f PATENT OFFICE.

CHARLES E. BATHRICK, OF CHICAGO, ILLINOIS, ASSIGNOR TO FREDERICK C. AUSTIN, OF CHICAGO, ILLINOIS.

MACHINE FOR USE IN STREET-PAVING WORK.

To all whom it may concern:

Be it known that I, CHARLES E. BATH- RICK, a citizen of the United States, residing at Chicago,-in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Machines for Use in Street-Paving ork, of which the following is a specification.

- My invention relates to an apparatus or machine for use in street paving work and comprising a carriage provided with a boom and a hopper 0r receptacle supported to traverse the boom and adapted to be moved into position to receive a batch of material,

suehas concrete from a mixer on the earriage, and when thus loaded, to be run out along the boom to a point for discharging its contents. Objects of my invention are to ,provide conveniently manipulated and generally efiicient meansfor the delivery of material from 'a portable mixer to any desired points along a street where such material is to be applied for paving purposes; to deliver the material from the mixer to any desired point across the street without laterally shifting the truck or carriage supporting the mixer, whereby progressive movement of the carriage along the street line will involve all necessary bodily movement on the part of such carriage to permit the employment of a comparatively long boom normally horizontal or substantially so and having a wide extent of lateral sweep whereby material can be delivered along a wide area of streetsurface; to provide means for temporarily propping up the boom when it sustains the weight of a loaded receptacle thereon, and to utilize the weight of such loaded receptacle as a means for primarily causing a temporary propping up of the boom; to automatically raise the boom propping means from the ground when the boom is relieved from the weight of a loaded receptacle, and to provide certain novel and improveddetails as hereinafter set forth.

In the accompanying drawings: Figure 1 is a side elevation of an apparatus embodying my invention. Fig. 2 is a top plan of Fig. 1, the lateral swing of theboom being illustratedby dotted lines. Fig. 3 is a detail view illustrating in side elevation a portion of the boom and certain adjuncts, on a larger Scale than in preceding figures. Fig. 4 is Specification of Letters Patent.

Application filed May 14, 1909.

Patented Apr. 25, 1911.

Serial No. 456,013.

an elevation of the main portion of Fig. 3, the boom being in cross section on line 4: 4 in Fig. 3. Fig. 5 is a detail on a larger scale mainly illustrating in section the spring device for upholding or floating the boom. Fig. 6 comprises a detail showing a section taken transversely through the boom and illustrating the trolley device for the hopper, Fig. tin is a detail illustrating the .double hinge connection between the boom and the motor truck or carriage.

1n the drawings indicates a truck or carriage which is understood to be provided with any suitable means for propelling it along a street, and which is also understood to be provided 'witb any desired suitable means "for operating *a rotary mixer ll for mixing up concrete or the like. With reterence to the mixer li, it is only necessary to observe that it is mounted on the carriage and that the discharge therefrom is delivered by a chute. or trough tinto a receptacle or hopper 15 when said receptacle or hopper is in position to receive a batch of material discharged from the spout or trough C which is supported upon the carriage. 'lhe receptacle ii is suspended from a boom 1 1 by means of a truck or trolley device l) arranged to traverse the boom. \Yh'en therefore it is desired to load the hopper, the latter can be brought under spout C as shown in full lines in Fig. 1, and it can then be run out along the boom as indicated for example in dottedlines in said figure. The inner end of the boom is connected with the carriageby a vertical pivot 1 which permits lateral swing on the part. of the boom and the inner end portion of the boom is also connected ,with the carriage by a horizontal pivot l" \vl'ierebythe boom can be swung in a vertical plane, a suitable extent of up swing on the part of the boom being illustrated in Fig. 1 as shown in full lines. the desired extent of down swing on the part of the boom being in said fignre indicated by dotted line The boom is provided at a point between its' ends with a supporting device F, and as best shown I in Fig. t, this supporting device is constructed with a couple of leg members 3, 3, having their lower end portions provided with small rolls 4, t, which bear upon the ground when the boom is in its lowered position, as indicated by dotted lines iii-Fig.

hopper is back or near the carriage as in full lines in Fig. 1, or when it is thus back and not loaded, the spring means will be suflicient to swing the boom upwardly from the position shown in dotted hues to the position shown in full lines in said figure, and when the boom is thus raised to cause the caster wheels or rolls 4 to clear the ground.

" This leaves the boom free to be swung laterally about the vertical axis of pivot 1,

'so that while the carriage may be on the middle longitudinal line of a street, the boom can be swung toward either side so as to permit the hopper when loaded to be run out for delivery to points at'either side of the middle'line of the street, the point of delivery being determined by the extent of lateral swing on the part of theboom and the extent to which the trolley I) by which the hopper is suspended is run out along the boom. In Fig. 2, these side movements on the part of the boom are indicatedin dotted lines, it being understood that the boom can be swung into either of said positions, at

will. Although thewh'eels lmaybe ordinary caster wheels, it is nevertheless desirable to normally maintain them off the ground, or

" to so maintain them when it is desired to swing the boom toward either side, wherebyit will not be necessary to provide for 1ndividual up-and-downbodily play of the wheels in accordance with irregularities of the street or road surface, and moreover, as the boom orbeam is quite long and heavy, an arrangement such as illustrated ishighly preferable.

When the hopper B is in loading position as shown in full lines in Fig. 1, material such as concrete can be discharged from the .mixerB- into said hopper by way of the chute or spout C, and the trolley D can then be moved along the boom in a direction away from the carriage A and to a desir ed extent, and as the trolley is thus run out along the boom, the Weight of the loaded hopper will depress the outer end portion of the .boom as indicated by dotted line 2, whereby the smallwheels 4 of the prop or supporting.

leg device F willbe lowered until they rest upon the ground and thereby the said prop or legdevice will suitably uphold the boom whichis thus weighted down by the loaded hopper. When the hopper is unloaded and returned toward its loading position, the

boom will be raised by'the'floating spring means as soon as'it has been relieved of the weight of the load which served todepress it.

The floating spring device shown com-- prlses a spring 5- arranged between the two plates or heads 6 and 7 (Fig. 5), the plate (3 being secured to the ends of a staple-she d rod 8' which extends within the coil spring 5. The plate or follower 7 is adapted to slide upon and along the staple'sh'aped rod 8 and a similar rod 9 has the ends of its leg portions secured to the follower 7, the bent or eye portion 10 of the rod 9 being extended outwardly through openings with which plate (3 is understood to be provided for such purpose, whereby the follower 7. can be moved along the rod 8 in accordance with the compression and expansion or" the spring. The bent end or eye portion 11 oi rod 8 is flexibly connected with a link 12 by means of a pivot 13, and this link 12 is pivotally attached by pivot 14 with a plate or casing G, which is in turn secured upon the upper ortion 15 of the boom rop or leg device F. The casing G is provided with a pulley 16 mounted upon a spindle 17 and rigid ratchet 18, a pawl lllbeing pivoted to the casing and arranged for engaging the ratchet .17. The boom is connected with the tension spring device H by any suitable blockand tackle device I, which comprises a cable 20-.attached to'the winding pulley or drum 16 and extending-between and about a pulley 21 on the link 12 and a pulley 22 on link 23 which is piyoted to the casing G, one terminal of the cable being secured to the winding drum or pulley 16 and its other terminal being secured to link 12 as in Fig. 1. The winding drum orpulleyv .16 is provided with an arbor .24, where-- by it canbe turned by any suitable key- 'linlr 12 as in Fig, 1. The winding drum or pulley 16 is provided with an arbor 24, whereby it can be turned by any suitable key or the like for the purpose f winding cable ice 20 on the drum l6; and thereby so increasing the spring tension of spring 5 as to raise the boom and maintain the same in a normally raised eondition.- Khan the carriage isto be propelled along the street with the hopper empty, the attendant can, if he so -de-- sires, releasepawl 19 from the ratchet 18' whereby the boom will swing downwardly" of its own weight untilthe wheels {of 1 the supporting leg device F, rest u on and traverse the ground. :The boom an .leg device F are suitably -trussed and braced-by suitable truss-bars. 25, 26, 27 and 28, as

shown in Fig. 1, and the leg device F is also further suitably braced and 31.

.Asshownthe boom com rises a pair of parallel channel bars 32w ich are understood to be rigidly secured together and which form tracksfor thetr olley wheels 33,

33, as best shown'in Fig. 6, in'which these wheels are pivotedor journaled u n a truck frame 34, which is understood to swiveled by truss rods 29, 30 4 mixer and delivering the same at points more or less remote therefrom; a shifting connection between the delivery receptacle and the boom and movable along the latter in order to shift the position of the delivery receptacle in accordance with need; spring means interposed in connection between the motor truck or carriage and the boom and adapted to normally maintain the boom in level or substantially level position to provide a suitable track or way; and a prop or leg device attached and depending from the boom, the prop or leg device being clear of the ground whenthe boom is maintained in level or substantially-level position by the spring'means, and being of a length to engage and bear upon 'the ound and sustain the weight of the boom and the loaded reoeptacle when the boom is depressed by reason of its weight augmented by the weight of the loaded receptacle, the spring means being adapted to yield to an extent to permit said depression on the part of the tempo rarily weighted boom, but opposing such depression with an increasing spring resistance suitable to restore the boom to its normal position after the boom has been suitably relieved of the weight of the load thereon.

2. In a machine of the class set forth, the combination of a motor truck or carriage provided with a mixer; a boom forming a track extending out from the motortruck or carriage and having its inner end portion attached thereto by hinge means permitting the boom to swing laterally and up and down; a delivery receptacle for receiving i material from the mixer, a trolley connection movable along the track provided by the boom whereby trhesaid receptacle is suspended; a prop or leg device attached to and depending from the boom; spring means interposed in connection between the boom and the motor truckor carriage and adapted to normally maintain the boom sutlicicntly elevated to permit the prop or leg device to clear the ground, said spring means being adapted to yield with an increasing spring resistance and to an extent to permit the boom to swing downwardly to an extent to permit the prop or leg device to rest upon the ground and support the boom when the weight of the latter is augmented by the weight of the receptacle in loaded condition.

3. In a machine of the class described, the combination of a portable support provided with, a mixer and suitable for street service; a laterally and vertically swinging boom hingesconnected with the portable support; a delivery receptacle, a trolley device adapted to traverse the boom which rovides a track therefor from which trol ey device said receptacle is suspended; a prop or leg device for temporarily upholding the boomwhen the latter is depressed; and adjustable spring connecting means between the boom and the portable support, the range of adjustment of said adjustable spring connecting means being suitable for varying the spring tension to an extent to permit the boom to swing downwardly when the spring tension is relaxed, and conversely to raise and maintain the boom in a relatively elevated position when the spring tension is increased by adjustment. l

4. In a machine of the class set forth, the

combination of a portable support provided with a mixer and a projecting boom which is attached to the portable support by hinge connection permitting the boom to swing lat orally and up'and down; connection between the boom and the portable support comprising a spring, a block and tackle, and a device for winding andnnwinding the cable of the block and tackle so as to vary the tension of the spring; a delivery receptacle, and a trolley device arranged to traverse the boom and serve to suspend said delivery receptacle.

CHARLES E. BATHRICK.

Witnesses v 'O'r'rILm C. FREIBERG, CATHERINE L. Craven. 

